<template>
  <el-container class="home-container">
    <!--头部区域-->
    <el-header>
      <div>
        <img src="../assets/heima3.png" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!--页面主题区域-->
    <el-container>
      <!--侧边栏-->
      <el-aside width="200px">
        <el-menu
          background-color="#576d93"
          text-color="#fff"
          active-text-color="#ffd04b"
          unique-opened   
          :collapse="isCollapse"
          :collapse-transition="false"
          :router="true"
          :default-active="activePath"
        >
          <el-submenu :index="item.id+''"  v-for="item in menulist" :key="item.id"> 
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            
            <!--二级菜单-->
              <el-menu-item :index="'/' + subItem.path"  v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/'+subItem.path)">
                <template slot="title">
                  <i class="el-icon-menu"></i>
                  <span>{{subItem.authName}}</span>
                </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!--右侧内容主体-->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>



<script>
export default {

    data(){
        return{
            menulist:[],
            iconsObj:{
                '125':'iconfont icon-user',
                '103':'iconfont icon-tijikongjian',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-danju',
                '145':'iconfont icon-baobiao'
            },
            isCollapse: false,
            activePath:''

        }
    },
    created(){
        this.getMenuList()
        this.activePath = window.sessionStorage.getItem('activePath')
    },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList(){
      const {data:res}= await this.$http.get('menus')
      if(res.meta.status !==200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
      console.log(res)
    },
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath = activePath

    }
  }
}
</script>

<style lang="less" scoped>
.el-header {
  background-color: #284f95;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #e1e3e6;
  font-size: 15px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 5px;
    }
  }
}
.el-aside {
  background-color: #576d93;
}
.el-main {
  background-color: #e1e3e6;
}
.home-container {
  height: 100%;
}
</style>